<template>
  <div>
    <!-- 头部滑动 -->
    <div id="slider" class="mui-slider">
      <div
        id="sliderSegmentedControl"
        class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted"
      >
        <div class="mui-scroll">
          <a
            :class="['mui-control-item' ,item.id==0?'mui-active':'']"
            v-for="(item, index) in cates"
            :key="index"
            @click="getPhotolistByCateId(item.id)"
          >{{item.title}}</a>
        </div>
      </div>
    </div>
    <!-- 图片列表加载区域 -->
    <ul class="photo-list">
      <router-link  v-for="(item,index) in photoList" :key="index" tag="li" :to="'/home/photoinfo/'+item.id">
        <img v-lazy="item.img_url">
        <div class="info-item">
          <div class="info-title">{{item.title}}</div>
          <div class="info-body">{{item.zhaiyao}}</div>
        </div>
      </router-link >
    </ul>
  </div>
</template>
<script>
import mui from "../../lib/mui-master/dist/js/mui.js";

export default {
  data() {
    return {
      cates: [],
      photoList:[]
    };
  },
  methods: {
    getCategroy() {
      this.$http.get("api/getimgcategory").then(function(res) {
        if (res.body.status == 0) {
          res.body.message.unshift({ title: "全部", id: 0 });
          this.cates = res.body.message;
        }
      });

    },
    getPhotolistByCateId(id){
      this.$http.get('api/getimages/'+id).then(function(res){
        if(res.body.status==0){
          this.photoList=res.body.message
        }
      })
    }
  },
  created() {
    this.getCategroy();
    this.getPhotolistByCateId(0)
  },
  mounted() {
    mui(".mui-scroll-wrapper").scroll({
      deceleration: 0.0005 //flick 减速系数，系数越大，滚动速度越慢，滚动距离越小，默认值0.0006
    });
  }
};
</script>   
<style lang="scss" scoped>
* {
  touch-action: pan-y;
}
.photo-list {
  list-style: none;
  margin: 0;
  padding: 10px;

  li {
    background: #ccc;
    text-align: center;
    // 文字定位使用
    position: relative;
    img {
      width: 100%;
      vertical-align: middle;
    }
    margin-bottom: 10px;
    box-shadow: 0 0 9px #999;
    img[lazy="loading"] {
      width: 40px;
      height: 300px;
      margin: auto;
    }
    .info-item{
      position: absolute;
      bottom: 0;
      text-align:left;
      color: #fff;
      padding: 0 5px;
      background: rgba(0,0,0,0.4);
      max-height: 84px;
      .info-title{font-size: 14px;}
      .info-body{font-size: 13px;}
    }
  }
}
</style>
